Thats a shame, its IMO a better looking car than the Panda, though I like the Panda apart from the 5 door mini people carrier thing, should have been a 3 door option only on 100HP.
Although on paper 8.9 and 9.5secs 0-60 seem close in reality the Panda doesn't crack 10secs to 60 and feels slow, and the Swift will do its quoted time with ease going by all the timed runs I've read in magazines. It's a simple fact that its near enough same car as 500 1.4, same floor pan, engine, gearbox etc same weight yet the 500 is listed as 10.5 0-60.
You can also by the Panda for not much over £7K new from online dealers, this will affect 2nd hand values because if its that new, whats it worth after 3 years.
My friend has a 3L Z4, bought it about 18months back to replace his Clio 172 Scarab (no.3 of 172 made), its quickish, handles well enough, ride was poor, but much improved since changing to normal tyres from run-flats. All in its an OK car, but I would much rather have a Z3M, last M car to have no driver aides, and last of the straight 6 M engines.
But whatever you end up doing I'm sure it will suit you as cars are always a personal choice, and well done on wage rise.